Well seeing as I just checked out the Play By Play on every major MMA site and none of them have anything about the fight being off I'm calling BS. Sherdog is there reporting and I'm pretty sure they would have something up on their site about it not happening, same with MMAWeekly.

A lot of sites get money from their sponsors based on the number of hits they get on their site. That's probably the reason why MMAbay posts such fake and shitty news articles all the time.

Edit:

It looks like a few other sites are reporting it but one of them is just saying what mmarated said so I'm going to wait a little longer until I believe it. If it is true I wish they could set up Arlovski/Slice. That would be a fight I would love to see.